Governor



April 16, 1929. M CRAFTS l 1,709,463

April 16, 1929.

I. M. CRAFTS GOVERNOR Filed April 5, 1928 4 Sheets-Sheet 2 April 16, 1929. M. CRAFTS 1,709,463

GOVERNOR Filed April 5. 1928 4 sheets-sheet 3 wat April 16, 1929. M CRAFTS 1,709,463

GOVERNOR Filed April 5, 1928 4 Sheets-Sheet 4 Patented Apr. 16, 1929.

UNITED STATES IRVING I. CRAFTS, OF PORTLAND, CONNECTICUT,-ASSIGNOR TO THE PICKERING GOV- PATaN'i` oFFlcE.

ERNOR C0., 0F PORTLAND, CONNECTICUT, A. CORPORATION.

GOVERNOR.

Application led April 5, 1928. Serial No. 267,601.

This invention relates to an improvement in centrifugal governors particularly designed for use in connection with linternal combustion engines but not so limited.

The object of this invention is to provide a simple, eicient and compact centrifugal governor constructed with particular reference to superior sensitiveness and responsiveness to speed changes. i

In the .accompanying drawings:

Fig. 1 is a side view of a governor constructed in accordance with my invention;

Fig. 2 is a'sectional view on the line 22 of Fig. 1;

Fig. 3 is a side view showing the weights and means for connecting them with a governor-sleeve Fig. 3*l is asimilar view but showing the parts in the positions due to them when the weights are rocked outward by centrifugal force; l

Fig. 4 is a top view of the same;

Fig. 5 is an under-side view of the same;

Fig. 6 is an edge view of the same;

Fig. 7 is a sectional view on the line 7-7 of Fig. 4;

Fig. 8 is a sectional view on the line 8 8 of Fig. 4;

Fig. 9 is a sectional view on the line 9 9 of Fig. 7;

Fig. 10 is a perspective view of one of the weights detached;

Fig. 11 is a perspective view of the governor-sleeve detached; and

Fio. 12 is a perspective view of the yoke detaled. v

In' carrying out my invention, I employ a spindle 15 adapted at its lower end 16 to be connected with the moving part of an engine. Threaded onto the spindle is ahead 17 which may be fixed to the spindle by a pin 18. Bcyond the head, the spindle is reduced in diameter and enters vthe bore 19 of a sleeve 20 which is formed at its lower end on opposite sides with outwardly-projecting fingers 21. The outer end 22 of the sleeve is reduced in diameter to enter a ball-bearing ring 23 which is surrounded by a ring 24 spaced from it to provide raceways f or anti-friction balls 25. On opposite sides are weights 26 and 27 formed with inwardlyrojecting liftingfingers 28 formed wit perforations 29 through which lifting-pins 3Q @Xtend to bear against the under-faces of the fingers 21. The perforations 29 are doubly beveled so that the pins have a certa-in amount of rocking movement, as shown in Fig. 9, to equally bear against the lingers 21, the pins 30 being secured 1n the finger 28 by locking-pins 31, the ends of which are turned to hold them in place. These weights are formed in their lower faces on opposite sides of the liftingnger 28 with notches 32 for the reception of the ends of weight-mounting springs 33 and 34 which are connected with the weights by screws 35. The springs 33 extend below the lifting-pms 30 and are seated in notches 36 1n the head 17 and between the springs 33 and 34.are spacing-blocks 37 and over the springs 34l are clamping-plates 38, the plates and blocks being secured to the head by screws 39 whlch pass through the springs. Extending transversely through the weights are perforations 40 for the location of pins 41 and' 42 which are connected together by springs 43 and 44 which tend to draw the weights together. The head 17 is suitably mounted in a caslng 45 provided with a cap-piece 46 and mounted in this cap-piece is a shaft 47 to which means for controllin the engine are connected. Pinned to this s raft 47 is a yoke 48 which extends into line with and so as to b e engaged by the ring 24 and so that as that ring is raised or lowered, the yoke will be rocked to move the shaft 47. Connected with the yoke and with a worm-gear 49 on the shaft 47 is a tension-spring 50 and mounted in the cap and engaging with the worm-gear 49 is a worm 51 on a shaft 52, one end 53 of which projects outward through the cap in convenient position to be turned, whereby the tension of the spring may be adjusted.

As the speed of the spindle 15 increases by the action of the engine, centrifugal force tends to move the weights 41 and 42 outward, causing the pins 30 to lift the sleeve 20 and the lifting of the sleeve 20 moves the yoke 48 and turns the shaft 47 accordingly, and this lifting of the sleeve may be regulated to a certain extent by the tension on the spring 50, which also tends to depress the yoke and hence turn the shaft 47 to its normal position. The springs 33 and 34 provide substantially-frictionless pivots for the weights and, at the same time, exert controlling influence on the weights.

I thus provide, in a very com act manner, a governor particularly designe for the control of a prime mover.

I claim:

1. A centrifugal governor, comprising a rotatable spindle; a pair of flexible converging lreversely-bowed complementary sheetmetal mounting-springs carried by the said spindle and transversely-disposed with respect thereto;- a weight secured to the converging ends of the said springs and supported thereby with capacity for rocking movement toward and away from the said spindle; Spring-means arranged to yieldingly hold the said weight inward toward the said spindle; and means for transmitting the movement of the said weights to the mechanism to be governed.

2. A centrifugal governor, comprising a rotatable s indle; a head secured thereto; a pair of exible converging reversely-bowed complementary sheet-metal mounting-springs carried by the said head and hence by the said spindle and transversely-disposed with respect to the said spindle; a weight secured to the converging ends of the said springs and supported thereby with capacity for rocking movement toward and away from the said spindle; spring-means arranged to yieldingly hold the said weight inward toward the said spindle; and means for transmitting the movement of the said weights to the mechanism to be governed.

3. A centrifugal governor, comprising a rotatable spindle; a pair of iiexible reverselybowed complementary sheet-metal mountingsprings carried b and transversely-disposed with respect to the said spindle and having their opposite ends converging; a weight secured to each of the converging opposite ends of the said springs and supported thereby with capacity for rocking movement toward and away from the said spindle; springmeans extending between the weights at the respective opposite ends of the said springs and normally urging them inward toward the said spindle; and means for transmitting the movement of the said weights to the mechanism to be governed.

4. A centrifugal governor, comprising a rotatable spindle; a head secured thereto; a pair of flexible reversely-bowed complementary sheet-metal mounting-springs carried by the said head and transversely-disposed with respect to the said spindle and having their opposite ends converging; a weight secured to each of the converging opposite ends of the said springs and supported thereby with capacity for rocking movement toward and away from the said spindle; spring-means extending between the weights at the respective opposite ends of the said springs and normally urging them inward toward the said spindle; and means for transmitting the movement of the isaid weights to the mechanism to be governed.

5. A centrifugal governor', com rising a rotatable spindle; a head secured thereto; a pair of flexible reversely-bowed complementary sheet-metal mounting-springs carried by the said head and hence by the said spindle and'transversely-disposed with respect to the said spindle and having their opposite ends converging; a weight secured to each of the converging opposite ends of the said springs and supported thereby with capacity for rocking movement toward and away from the said spindle; spring means normally urging the said weights inward toward the said spindle and means for transmitting the movement ofthe said weights to the mechanism to be governed.

6. A centrifugal governor, comprising a rotatable spindle; two pairs of flexible converging reversely-bowed complementary sheet-metal mounting-springs respectively carried by the said spindle on each of the opposite sides thereof and transversely-disposed with respect thereto; a weight secured to the converging ends of the said pairs -of springs and supported thereby with capacity for rocking movement toward and away from the said spindle spring-means extending between the weights at the respective opposite ends of the said springs and normally urging them inward toward the said spindle; and means for transmitting the movement of the said weights to the mechanism to be governed.

7. A centrifugal governor, comprisin a rotatable spindle; a pair of flexible lamlnated converging reversely-bowed complementary sheet-metal mounting-springs carried by the said spindle and transversely-disposed with respect thereto; a weight secured to the converging ends of the said springs and supported thereby with capacity for rocking movement toward and away from-the said spindle; spring-means arranged to yieldingly hold the said weights inward toward the said spindle; and means for transmitting the movement of the said weights to the mechanism to be governed.

8. A governor, comprising a spindle, a head mounted thereon, a pair of double-ended flexible reversely-bowed complementary sheet-metal mounting-springs carried by said head, a sleeve slidable on said spindle and formed on opposite sides with fingers, two weights arranged on opposite sides of the sleeve and secured respectively'to the opposite ends of the said mounting-springs; and formed with inwardly-projecting arms, pins mounted in said arms and bearing on the under-side of said vfingers, upper and lower springs connecting the lower ends of the weights, the lower springs extending beneath the lifting-pins, governor-springs tending to draw the two weights together, a governorshaft above said sleeve, a yoke pinned to said shaft and extending over said sleeve and adapted to be moved thereby, and a'spring on said governor-shaft tending to return i't to its vnormal position.

9. A governor, comprlslng a spindle, a

head mounted thereon, a pair of fiexible double-ended reversely-bowed complementary sheet-metal mountin -spring's carried by said head, a sleeve slida le on said spindle and formed `on opposite sides with fingers, two weights arranged on opposite sides of the sleeve and secured respectively to the opposite ends of the said mounting-springs and formed with inwardly-projecting arms, pins mounted in said arms and bearing on the under-sidey of said lingers, upper` and lower IRVING M. CRAFTS.- 

